biggest cam for a 4.8
Apr 14, 2009 | 05:47 PM
#11
one showed up with cam only . . . . no stall
The other 2 already had a 2600, and a 3200 . . . they were from a local tranny builder.
Those cams were only good for 70-80mph or more in those motors. . . nothing at all below that . . . it was a joke.
Apr 14, 2009 | 06:00 PM
#12
Thread Starter
Fastest D1 Procharged Truck
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From: mASSHOLE
Its up to you, a cam that big will sound cool and that would be about it... I am one of the few on this board that has experiemented with alot of stuff on the 4.8 and posted all the results...
IMO buy a cam that is good for the 4.8, then sell it when you build the LQ9 and buy another one... Cams sell really good on this board... But i hope you do live tunes or at least get the cable from Justin, cause it is going to be a nightmare to tune...
IMO buy a cam that is good for the 4.8, then sell it when you build the LQ9 and buy another one... Cams sell really good on this board... But i hope you do live tunes or at least get the cable from Justin, cause it is going to be a nightmare to tune...
Apr 14, 2009 | 06:42 PM
#13
I like BlackGMC's examples of how bigger isn't always better 
Apr 15, 2009 | 06:36 AM
#16
I wouldn't run a monster cam in that motor because it will not make the power where you want it as the others have said. I would look closely at what blackgmc has said because I know he had done the research. The AFR 205 I think while are good heads, for the money there are better heads out there for the same or less money.
Apr 15, 2009 | 09:00 AM
#17
speaking from experience.... I would not go bigger than a 220/220 @112, but that is just me...
Getting the cam you listed to run correctly will be a MONSTER task... sure it will run, but it will idle like crap, MPG will completely suck, it will have a power band resembling a Vtec.... Peak HP is totally different than power under the curve... Power under the curve is what wins races.. Just my .02....
my 222/224 @112+2 did 2.00 60ft and 8.6
my 214/220 @ 108+2 did 1.83 60ft at 8.37
Bigger is not always better.
Getting the cam you listed to run correctly will be a MONSTER task... sure it will run, but it will idle like crap, MPG will completely suck, it will have a power band resembling a Vtec.... Peak HP is totally different than power under the curve... Power under the curve is what wins races.. Just my .02....
my 222/224 @112+2 did 2.00 60ft and 8.6
my 214/220 @ 108+2 did 1.83 60ft at 8.37
Bigger is not always better.
isnt this comparison AFTER swapping heads and cam? i just didnt want to give anyone reading this a false hope that a cam will drop their 60' .2 and almost drop .3 in the 1/8th.... especially after already having a nice cam.
i think your cam swap helped a bit, the heads most likely added most of the gain, IMO. i think stepping the duration down a bit picked up your low end, and adding the heads picked you up on the top.
just my .02 ... again, not picking on you. just putting it out there for those who are just tuning in.
Apr 15, 2009 | 09:04 AM
#18
i am in NO WAY trying to create a pissing contest Corey, i think a lot of you man... but...
isnt this comparison AFTER swapping heads and cam? i just didnt want to give anyone reading this a false hope that a cam will drop their 60' .2 and almost drop .3 in the 1/8th.... especially after already having a nice cam.
i think your cam swap helped a bit, the heads most likely added most of the gain, IMO. i think stepping the duration down a bit picked up your low end, and adding the heads picked you up on the top. Both tunes were ok, far from perfect...
just my .02 ... again, not picking on you. just putting it out there for those who are just tuning in.
isnt this comparison AFTER swapping heads and cam? i just didnt want to give anyone reading this a false hope that a cam will drop their 60' .2 and almost drop .3 in the 1/8th.... especially after already having a nice cam.
i think your cam swap helped a bit, the heads most likely added most of the gain, IMO. i think stepping the duration down a bit picked up your low end, and adding the heads picked you up on the top. Both tunes were ok, far from perfect...
just my .02 ... again, not picking on you. just putting it out there for those who are just tuning in.
Apr 15, 2009 | 09:10 AM
#19
ah, didnt know that. my apologies sir 
i remember hoping that you would do it that way, just didnt see the thread where it you said it in that order... i probably overlooked it.
that is quite a difference from a cam swap.
i remember hoping that you would do it that way, just didnt see the thread where it you said it in that order... i probably overlooked it.
that is quite a difference from a cam swap.
Apr 15, 2009 | 09:16 AM
#20
No worries man, i think the gain was because the whole package worked together better. I am no cam expert, that is why i went to an expert, but i think the extra lift and super tight LSA is what helped the 60ft. I just think my old cam was completely wrong for my truck... The new cam starts sooner and pulls ALOT higher, and it is smaller, wierd huh? I dunno that is why i paid $460 for the cam, it was speced out for my application...